Bladeless cooling fan

Abstract

The present invention discloses a bladeless cooling fan, which is used to solve the problem of poor use experience of the fan in the prior art. The bladeless cooling fan comprises: a fan body, comprising an air inlet; a water cooling component, which is provided together with the air inlet, wherein the water cooling component cools the air that enters the fan body via the air inlet; a wind wheel component, which is accommodated in the fan body and arranged to generate air flow; an air outlet component, which is installed on the fan body, wherein the air outlet component is arranged to receive the air flow from the fan body and guide the air flow to be ejected to the set direction.

What is claimed is: 
     
       1. A bladeless cooling fan, wherein the bladeless cooling fan comprises:
 a fan body, comprising an air inlet; 
 a water cooling component, which is provided together with the air inlet, wherein the water cooling component cools air that enters the fan body via the air inlet; 
 a wind wheel component, which is accommodated in the fan body and arranged to generate air flow; 
 an air outlet component, which is installed on the fan body, wherein the air outlet component is arranged to receive the air flow from the fan body and guide the air flow to be ejected to a set direction; 
 wherein the wind wheel component comprises a diagonal flow wind wheel and a first volute and a second volute cooperating with each other, the first volute cooperates with the second volute to form a wind wheel cavity accommodating the diagonal flow wind wheel, the first volute is provided with a first volute opening through which the air enters, and the second volute is provided with a second volute opening through which the air flow generated by the diagonal flow wind wheel exits; 
 wherein the wind wheel component further comprises a third volute cooperated with the second volute to form a deflector cavity, the third volute is provided with a third volute opening through which the air flow exits, a deflector cover is provided in the deflector cavity, and the deflector cover is used to guide the air flow flowing into the deflector cavity through the second volute opening to the third volute opening; and 
 wherein the third volute is symmetrically provided with two of the third volute openings, the deflector cover has a gradually decreasing cross-sectional area in a direction in which the deflector cover extends from the second volute to the third volute, a deflector fin cooperating with an inner wall of the third volute is formed on the deflector cover, and the deflector fin divides the deflector cavity into two parts corresponding to the aforementioned two of the third volute openings. 
 
     
     
       2. The bladeless cooling fan according to  claim 1 , wherein the air inlet is provided around the fan body. 
     
     
       3. The bladeless cooling fan according to  claim 2 , wherein the air inlet comprises an array of holes formed on the fan body; and
 in a plane direction perpendicular to a central axis of the fan body, a cross-section of the fan body is rectangular, and the air inlet is provided on a side wall on a periphery of the fan body. 
 
     
     
       4. The bladeless cooling fan according to  claim 1 , wherein the air outlet component comprises two outlet component air inlets corresponding to the two third volute openings and an air outlet through which the air flow is ejected,
 wherein the second volute opening has a total area less than or equal to the sum of total areas of the two of the third volute openings; 
 the sum of the total areas of the two of the third volute openings is equal to the sum of total areas of the two outlet component air inlets; and 
 the sum of the total areas of the two outlet component air inlets is less than or equal to total areas of the air outlet. 
 
     
     
       5. The bladeless cooling fan according to  claim 1 , wherein the second volute opening is ring-shaped, a plurality of first deflectors are arranged at intervals radially in the second volute opening, and each of the plurality of the first deflectors extends in a direction away from the first volute, which is substantially the same as a direction of the air flow through the second volute opening. 
     
     
       6. The bladeless cooling fan according to  claim 1 , wherein the air outlet component comprises an outlet component air inlet corresponding to the third volute opening, the third volute further comprises a deflector part provided at the third volute opening, and the deflector part has an outer profile that gradually changes in a direction of the third volute opening toward the outlet component air inlet, so that at least part of the air flow exiting through the third volute opening is guided to the outlet component air inlet. 
     
     
       7. The bladeless cooling fan according to  claim 6 , wherein the deflector part has a substantially gradually increasing cross-sectional area in a direction away from the third volute opening, and on a plane perpendicular to a central axis of the third volute, a part of an outer edge of a projection of the deflector part is located in a projection of the third volute opening. 
     
     
       8. The bladeless cooling fan according to  claim 1 , wherein the air outlet component comprises an air outlet, an outlet component air inlet, and an internal channel that transports the air flow from the outlet component air inlet to the air outlet; in a plane direction perpendicular to a direction in which the air flow of the air outlet component is ejected, the air outlet is generally U-shaped. 
     
     
       9. The bladeless cooling fan according to  claim 8 , wherein the internal channel comprises:
 a first channel part, which corresponds to the outlet component air inlet to receive the air flow entering from the outlet component air inlet; 
 a second channel part, an end of which defines the air outlet; 
 a bending channel part, which connects the first channel part and the second channel part; wherein 
 in a plane direction perpendicular to an extending direction of the air outlet, the first channel part and the second channel part are substantially parallel, and the air flow has substantially opposite flow directions in the first channel part and the second channel part. 
 
     
     
       10. The bladeless cooling fan according to  claim 9 , wherein a plurality of third deflectors are arranged at intervals in a direction in which the air outlet extends, and a central axis of a hole defined by any two adjacent third deflectors is substantially parallel to the direction in which the air flow of the air outlet component is ejected; an extending length of a third deflector at least partially adjacent to the outlet component air inlet is greater than that of a third deflector remote from the outlet component air inlet. 
     
     
       11. The bladeless cooling fan according to  claim 10 , wherein the third deflector at least partially adjacent to the outlet component air inlet has a gradually increasing extending length in a direction away from the outlet component air inlet; and
 the third deflector at least partially adjacent to the outlet component air inlet is in an arc-shaped sheet shape bent toward the outlet component air inlet. 
 
     
     
       12. The bladeless cooling fan according to  claim 9 , wherein a heating component and a wind deflector are provided in the internal channel; wherein
 when the bladeless cooling fan is in a heating state, the heating component is capable of being driven to move from the first channel part to the second channel part, and the wind deflector is capable of being driven to close at least part of the air outlet, so that the air received from the fan body is heated via the heating component and then emitted from the air outlet. 
 
     
     
       13. The bladeless cooling fan according to  claim 1 , wherein the air outlet component is connected with a mounting limiting base, the fan body is rotatably connected with a mounting base, and the air outlet component is rotatably connected with the fan body through the matching of the mounting limiting base and the mounting base; wherein a first position sensor is provided on the mounting limiting base, a second position sensor is provided on the mounting base, and the bladeless cooling fan controls the rotation angle of the air outlet component relative to the fan body through detection results of the first position sensor and the second position sensor. 
     
     
       14. The bladeless cooling fan according to  claim 13 , wherein an annular mounting cover and an annular driven gear assembled on the mounting cover are fixed on the fan body, a ball bearing component is provided between the mounting cover and the driven gear, and the bladeless cooling fan further comprises a driving gear which is capable of being driven and meshed with the driven gear.